Rancho Cucamonga, California Weather:
Friday, April 17, 2026
Cloudy Weather
Day 70°
Night 46°
Precipitation 96 %
Wind 8 mph
Weather Forecast History
Last Year's Weather on This Day (April 17, 2025)
Rainy Weather

Day

57°

Night

50°

Wind

9 mph

UV Index

3

Precipitation

70 %